Heat Transfer Questions


Q.  The eddy properties are used in turbulent boundary layer condition because

a. the eddy properties may be small compared to molecular properties
b. the eddy properties may be large compared to molecular properties
c. the eddy properties may be small or may be large compared to molecular properties, but never equals to molecular properties
d. none of the above


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  What is the relation between convection heat transfer coefficients of natural convection and forced convection?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  Assume a natural convection heat transfer on a vertical flat plate surrounded by a fluid. Where will be the fully developed turbulent layer of fluid established, if the plate is hotter than the fluid?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  Assume fluid flowing in a tube forcefully. The velocity boundary layer develops along the tube. Thickness of this boundary layer increases in the flow direction until the boundary layer reaches the tube centre. This region from the tube inlet to the point at which the boundary layers merge at the centerline is called as
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  What is hydro-dynamically developed region in fluid flowing inside a pipe?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  What is the ratio of the buoyancy force to the viscous force acting on a fluid called?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  In natural convection, the Nusselt number (Nu) depends on
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  The total radiation leaving a surface per unit time per unit surface area is called as
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  Radiosity (J) is the sum of radiation
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  Radiation shields are used
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  Which surface can be best described as a radiation shield?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  Which object can be used as a radiation shield?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  Gases absorb and emit radiant energy
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  Which among the following factors is/are taken into account in calculation of radiation emitted or absorbed by a gas layer?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  How is the incident radiation absorbed by a gas layer?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  What are the compact heat exchangers?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  Which of the following can be considered as more compact efficient heat exchanger?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  The compact heat exchangers are commonly used in
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  Usually, the flow arrangement of two fluids in compact heat exchangers is
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  What is effectiveness of fin?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  What is the effect of thermal conductivity k on fin effectiveness?
Category: Mechanical Engineering Questions,   Published by: teswesm